Smugglers Run.
Playstation PSX2 Cheat Codes

Bonus Track :
Drive through a big white temple in Loot Grab. This maybe difficult to find cause it is randomly generated.

Increase Time Warp :
Pause the game and press R1, L1, L2, R2, Right, Right, Right. Then you will hear a sound.
[Submitted by: D@ve]

Special Cars :
At the title screen press, Cross (x10), Cirlce, Triangle, R1, R2. Then you will get all the special cars. (This cheat has been reported to not work, check for your self)
[Submitted by: D@ve]

Extra Cars :
Take Midnight racing club and save your cars the load them on smugglers run and you will have extra cars!
[Submitted by: D@ve]

Secret Levels On the character select screen go to Sonia and hold ^ then press START. The screen will shake, then choose the character you wish to fight against. Change To Motarro On the character select screen go to the box of the character you wish to battle with and push and hold C, and ^C. Don't let go until you see your character turn into MOTARRO. Note: This code only works if you are fighting in the stage called WASTE LAND or JADE'SDESSERT.